Steam-generator.



No. 760,519. PATBNTED MAY 24, 1904.

0. BRNLER.

STEAM GENERATOR.

APrLIoATIoN FILED s139110, 190s.

No MODEL. `2 SHEETS-SHEET 1.

fwmlr No. 760,519. PATENTED MAY 24, 1904,

' 0. BRNLER.

STEAM GENERATOR.

APPLIOATION FILED SEPT. 1o. 1903.

No MODEL. s sums-SHEET z.

Patented May 24, 1904.

PATENT OEEICE.

OSCAR BRNLER, OF LEIPZIG, GERMANY.

STEAM-GENERATOR.

SPECIFICATION forming part of Letters Patent N 0. I760,519, dated May 24, 1904. Application filed September l0, 1903. Serial No. 172,572. (No model.)

To all, Irl/2,0711, t may concern:

Be it known that I, OseAR BENLER, mechanical engineer, a subject otl the Emperor o'f Germany, residing at Leipzig, in the Kingdom oi' Saxony, Germany, have invented certain new and useful Improvements in Steam-Generators, of which the following is a specification.

My invention relates to steam-boilers in which the combustion of a gaseous mixture under pressure takes place directly in water; and it consists, essentially, in the arrangement that the boiler containing the water and the `fuel is made very small and is in communication with a greater boiler, which is not directly heated.

In order to better explain the object of the invention, itis shown in the two aceompanying diagrams, of which- Figure l is a diagram of the apparatus used in carrying' out this invention, the larger boiler being shown in vertical section. Fig. 2 is a vertical section of the steam-generating boiler drawn to a larger scale.

The steam-generator consists of two receptacles A and B. The first contains the feed-water and the produced steam, and the second is the steam generator. The two receptacles communicate by a pipe c, by a water-pipe d, and by a steam-pipe e. In the pipe d is inserted a shut-oii' valve a' and in the pipe c a shut-off valve 7n. The pipe c may be closed, it' necessary, by a sliding valve. The steamgenerator is made very small in order to place therein only the burner and sufficient water .for surrounding the lame of the burner to prevent it from coming in contact with the walls of the steam-generator. At the mouth of the burner f, placed in the steam-generator B, the flame t burns below the water-surtace.

g is a heating-lamp having a cover z..

The combustibles and the combustion-air are forced into the burner under a pressure which must be greater than that in the boiler.

Pipe s, with a shut-off valve q, conducts the` combustion-air into the burner. The pipe r, with a shut-oit valve p, conducts the combustibles. The pipe o, leading to pipe s, and pipe a, leading to the pipe fr', conduct the compressed air and the combustibles into the heating-lamp. Shut-off valves and m are provided in the pipes o and a.

Having described the construction of my invention,I now describe its operation. At first the shutoff valves 1.' and f: and the sliding valve c are closed to separate the boilers A and B. lVhen the cover /L of the heating-lamp r/ is opened, the steam cannot escape from the boiler A. After the heating-lamp g is heated inside the shut-01T valves Z and m are opened and the combustibles are forced through the pipe a and the compressed air is forced through the pipe cinto the heating-lamp g. rlhe com bustible mixture is ignited by any means and the cover 7b is shut. The burning gaseousmixture makes its way through the burner f, and the products of combustion pass through the water, delivering heat to the water and collecting with the steam in the upper part of the steam-generator. As soon as the pressure in the steam-generator is high enough the shutotl' valve 7n, provided in the steam-pipe c, is

opened. In a few minutes the small quantity of water in the steam-generator B begins to boil, and then the shut-ofi valve z in the water-pipe d and the sliding valve c are opened. A and B being now in communication by all pipes, the valves p and g are also opened in order to conduct the combustibles through the pipe r and the compressed air through the pipe s into the burner f, in which the combustible mixture is ignited by the projecting flame of the heating-lamp. The fiame shoots out of the mouth of the burner j, whereby the water is set in very rapid motion, thereby preventing the boiler from incrusting. Since the boilers A and B are in communication by the sliding valve c, a strong current of hot water passes from B to A and cold water from A to B. 4

What I claim as my invention isl. In a steam-generator the combination with a boiler, which is not directly heated of a steam-generating boiler, in which the combustion of a gaseous mixture under pressure takes place directly in water, as set forth.

2. In a steam-generator in combination with a boiler, which is not directly heated, a steamgenerating boiler, being made very small in IOO which the combustion takes place directly in Water, and pipes Connecting both boilers, as specified.

3. In a steam-generator in combination With a boiler, which is not directly heated, a Very small steam-generating boiler, in which the combustion takes place under Water, pipes Qonneoting the boilers and shut-off Valves provided in the pipes, as set forth.

4. In a steam-generator in combination with a boiler, which is not directly heated, a Very small steam-generating boiler, in Which the combustion takes place under Water, communicating With the above boiler by a steam-pipe, by a Water-pipe and by a pipe situated at the Water-level, shut-olf Valves provided in the pipes and a heating-lamp, which may be closed by a cover arranged on the burner of the small steam-generating boiler as set forth.

OSCAR BRNLER.

Witnesses:

T. CARL HAUPTMANN, B. H. WARNER, Jr. 

